SRIsri.ciifad.cornell.edu/countries/nepal/Nepal_TaruwaBardi...SRI was developed in Madagascar by Fr....
Transcript of SRIsri.ciifad.cornell.edu/countries/nepal/Nepal_TaruwaBardi...SRI was developed in Madagascar by Fr....
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SRISRI
What is it ?
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SSy s tem o f y s tem of RRice ice IIntens ificationntens ification
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His tory o f SRIHis tory o f SRI
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His tory o f SRIHis tory o f SRI
SRI was developed in Madagascar by Fr. Henri de Laulanié, S.J., who between 1961 and 1995 worked with Malagasy farmers and colleagues to improve the possibilities of rice production in this country.
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His tory o f SRIHis tory o f SRI
SRI was developed in Madagascar by Fr. Henri de Laulanié, S.J., who between 1961 and 1995 worked with Malagasy farmers and colleagues to improve the possibilities of rice production in this country.
SRI begins with a philosophy, that rice plants are to be respected and supported as living creatures that have great potential. This potential will only be realized if we provide plants with the best conditions for their growth.
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His tory o f SRIHis tory o f SRI
SRI was developed in Madagascar by Fr. Henri de Laulanié, S.J., who between 1961 and 1995 worked with Malagasy farmers and colleagues to improve the possibilities of rice production in this country.
SRI begins with a philosophy, that rice plants are to be respected and supported as living creatures that have great potential. This potential will only be realized if we provide plants with the best conditions for their growth.
Some of the things that have been done for hundreds of years by farmers in countries around the world to make rice plants grow have unfortunately reduced their natural potential.
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SRI is all aboutSRI is all about
LEARNING&
EXPERIMENTING
“Growing Rice in a new way !”
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PRINCIPLES OF SRIPRINCIPLES OF SRI
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Early transplanting
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Early transplanting
Plant single seedlings
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Early transplanting
Plant single seedlings
Wide spacing
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Early transplanting
Plant single seedlings
Wide spacing
Careful transplating
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Early transplanting
Plant single seedlings
Wide spacing
Careful transplating
Moist but unflooded soil conditions
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Early transplanting
Plant single seedlings
Wide spacing
Careful transplating
Moist but unflooded soil conditions
Encouraging extensive root development
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Early transplanting 2-leaf stage Grain still attached From 8 days after sowing Latest by day 15 The earlier, the better Reason: Early transplanting encourages maximum tillering
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Plant single seedlings Traditional practise is to plant 3-4 seedlings per hill SRI: only 1 seedling per hill Reason: The rice plant to develop its full potential without competition
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Wide spacing Reason: gives individual plant more room to spread and encourages good root development
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Careful transplating Reduce impact of transplanting shock Within 30 minutes Seedlings must be treated like Babies! Reason: Only healthy seedlings will develop their full potential
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Careful transplating One idea from Nepal:
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Careful transplating One idea from Nepal:
Taking patches of plants with soil from the nursery These can be transported to field and divided in handy pieces for the planters
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Moist but unflooded soil conditions SRI will only be successfull if you can drain off excessive water!
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Moist but unflooded soil conditions SRI will only be successfull if you can drain off excessive water! During tillering and before flowering, the soil should be kept only moist, but not flooded!
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Moist but unflooded soil conditions SRI will only be successfull if you can drain off excessive water! During tillering and before flowering, the soil should be kept only moist, but not flooded! Allow the field to “dry” for 3-4 days every 2 weeks. It is no problem if “cracks” appear.
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Moist but unflooded soil conditions SRI will only be successfull if you can drain off excessive water! During tillering and before flowering, the soil should be kept only moist, but not flooded! Allow the field to “dry” for 3-4 days every 2 weeks. It is no problem if “cracks” appear. Once flowering begins, maintain a water level of 1-2 cm
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Moist but unflooded soil conditions Reason: Oxygen supply to the soil must be maintained! This will maximise root development and tillering!
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PRINCIPLES OF SRIPRINCIPLES OF SRI
Encouraging extensive root developmentThe following will encourage good root development:
Organic fertiliser: compost, green manure (e.g. Dhaicha)
Single transplants & wide spacing Mechancial weeding 2-4 times until canopy
closes. Weeding airates soil.
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PRINCIPLES OF SRIPRINCIPLES OF SRI
See the difference between them (from Cuba) !
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PRINCIPLES OF SRIPRINCIPLES OF SRI
See the difference between them (from Nepal)
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BENEFITS OF SRIBENEFITS OF SRI
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BENEFITS OF SRIBENEFITS OF SRI
Raise rice yields to 6-8 t/ha
Increase the factor productivity of land, labor, water and capital, all at the same time
Make agrochemical inputs unnecessary
Reduce water requirements for irrigated production by about half
Lower costs of production -- making rice production more profitable for farmers
Only 10% of seeds needed
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Nursery Management
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
24 hours pre-germinated seeds
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Sowing in dry-nursery
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Mulching & irrigating with watering can and “nali”
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Dry-nursery
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
After 11 days
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Comparison: Wet vs. Dry nursery
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Comparison of field cover over time
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 15
27 June
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 15
27 June
Day 22
4 July
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 15
27 June
Day 22
4 July
Day 32
14 July
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 15
27 June
Day 22
4 July
Day 32
14 July
Day 122
12 October
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Development of the single rice plantCloseup
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 22
27 June
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 22
27 June
Day 32
4 July
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 22
27 June
Day 32
4 July
Day 63
14 July
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Taruw a, Bardiy a SRI TrialTaruw a, Bardiy a SRI Trial
Day 22
27 June
Day 32
4 July
Day 63
14 July
Day 122
12 October
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Res ults and Com paris onRes ults and Com paris onTaruwa, Bardiya RARS, Sunsari-MorangSRI I SRI II Bhairahawa Irrigation System
2003 2003 2001-02 2002
Variety: PL 84 PL 84 R. MasuliArea (ha) 0,0580 0,0542Productive Tillers:
Average: 18 16Minimum: 5 3
Maximum: 40 31 70N of samples: 72 45
Yield:Total kg: 252 264
t/ha: 4,35 4,87 6,19 8,00Total Grain Weight 32 gr 31 gr 18.5 gr
TREATMENTS
Planting distance: 30 cm 15-20 cm 30 cm1 per hil 1-3 per hill
Fertiliser:compost: No No
Urea: 1 td 2 tdTransplanting age (days): 15 17 10Nursery type: dry Wet
Location:
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OBSERVATIONS: SRI II performed slightly better than SRI I Water control was impossible. Plots were flooded from around day 30. That resulted in less tillering and poor root development. Due to these reasons SRI II with higher planting density performed better. Still, the result is quite good without the use of inputs.
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IDEAS FOR IMPROVEMENTS: Use of compost and good land preparation. Growing Dhaicha as GM beforehand. Early sowing of a longer duration variety. Transplanting between day 8-10. Drain field before transplanting to get thicker mud. Experiment with different planting distances. Mechanical weeding for soil aeration. Better water management.
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